microblog/tests.py at master · tensaurus/microblog · GitHub

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from datetime import datetime, timedelta
import unittest
from app import app, db
from app.models import User, Post

class UserModelCase(unittest.TestCase):
    def setUp(self):
        app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite://'
        db.create_all()

    def tearDown(self):
        db.session.remove()
        db.drop_all()

    def test_password_hashing(self):
        u = User(username='Appu')
        u.set_password('apple')
        self.assertFalse(u.check_password('banana'))
        self.assertTrue(u.check_password('apple'))

    def test_avatar(self):
        u = User(username='Bablu', email='bablu@ablu.com')
        self.assertEqual(u.avatar(128),
        'https://gravatar.com/avatar/03fe4e68a0ba09f2021e23a71850bedb?d=identicon&s=128')

    def test_follow(self):
        u1 = User(username='Appu', email='appu@pappu.com')
        u2 = User(username='Bablu', email='bablu@ablu.com')
        db.session.add_all([u1, u2])
        db.session.commit()
        self.assertEqual(u1.followed.all(), [])
        self.assertEqual(u1.followers.all(), [])

        u1.follow(u2)
        db.session.commit()
        self.assertTrue(u1.is_following(u2))
        self.assertEqual(u1.followed.count(), 1)
        self.assertEqual(u1.followed.first().username, 'Bablu')
        self.assertEqual(u2.followers.count(), 1)
        self.assertEqual(u2.followers.first().username, 'Appu')

        u1.unfollow(u2)
        db.session.commit()
        self.assertFalse(u1.is_following(u2))
        self.assertEqual(u1.followed.count(), 0)
        self.assertEqual(u2.followers.count(), 0)

    def test_follow_posts(self):
        # create four users
        u1 = User(username='Appu', email='appu@pappu.com')
        u2 = User(username='Bablu', email='bablu@ablu.com')
        u3 = User(username='Champak', email='champak@champu.com')
        u4 = User(username='dhokal', email='dhokal@dhoku.com')
        db.session.add_all([u1, u2, u3, u4])

        #create four posts
        now = datetime.utcnow()
        p1 = Post(body='post from appu', author=u1, timestamp=now + timedelta(seconds=1))
        p2 = Post(body='post from bablu', author=u2, timestamp=now + timedelta(seconds=4))
        p3 = Post(body='post from champak', author=u3, timestamp=now + timedelta(seconds=3))
        p4 = Post(body='post from dhokal', author=u4, timestamp=now + timedelta(seconds=2))
        db.session.add_all([p1, p2, p3, p4])
        db.session.commit()

        #setup followers
        u1.follow(u2) # appu follows bablu
        u1.follow(u4) # appu follows dhokal
        u2.follow(u3) # bablu follows champak
        u3.follow(u4) # champak follows dhokal
        db.session.commit()

        # check the followed posts of each User
        f1 = u1.followed_posts().all()
        f2 = u2.followed_posts().all()
        f3 = u3.followed_posts().all()
        f4 = u4.followed_posts().all()
        self.assertEqual(f1, [p2, p4, p1])
        self.assertEqual(f2, [p2, p3])
        self.assertEqual(f3, [p3, p4])
        self.assertEqual(f4, [p4])


if __name__ == '__main__':
    unittest.main(verbosity=2)